1. Baking powder
3 tsp
baking powder
Best swap: Baking powder. Use 3 tsp baking powder per 1 tsp.
Baking soda is about three to four times stronger than baking powder, and it needs an acid in the recipe to work. There is no perfect one-to-one swap, but baking powder can cover for it if you adjust.
Use about three times as much baking powder in its place, and reduce added salt slightly. Because baking soda is much stronger and reacts with acid, the result will not be identical but will still rise.
No. Baking soda is pure sodium bicarbonate and needs an acid to work. Baking powder already contains an acid, so it can act alone but is much weaker.